Did you know that damage to a person’s left hemisphere can change how they make coffee?
Damage to the left hemisphere can cause a person to forget how to use a coffee machine, or even pick up a coffee cup.
This cognitive problem is called apraxia. Apraxia is a cognitive disorder that interferes with the performance of everyday actions. People that have had a stroke, brain injury, or that develop dementia may develop apraxia which will impair naturalistic actions. Naturalistic actions are behaviors that require the use of an object to be accomplished (i.e. using a comb to brush one’s hair). Studies examining whether executive function or semantic knowledge plays a larger role in apraxia have been completed with different patient populations showing contrasting results6.